dmalenko Reporter
	Description • 9 years ago

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_5) AppleWebKit/600.8.9 (KHTML, like Gecko) Version/8.0.8 Safari/600.8.9

Steps to reproduce:

1. Open attached HTML file.
2. Close tab or window.


Actual results:

In Firefox 42.0a2 window silently closes.

In Firefox 40.0.3 message "This page is asking you to confirm that you want to leave - data you have entered may not be saved." appears.


Expected results:

In both cases message "This page is asking you to confirm that you want to leave - data you have entered may not be saved." should appear.

	Gingerbread Man
	Comment 1 • 9 years ago

(In reply to dmalenko from comment #0)
> In Firefox 40.0.3 message "This page is asking you to confirm that you want
> to leave - data you have entered may not be saved." appears.

Also the latest Beta.

I'm inclined to think this was an intentional change (considering reports like bug 1123986 and bug 578828), but I haven't managed to find when it was introduced.

	:Gijs (he/him)
	Comment 2 • 9 years ago

99% sure this is because e10s is on on dev edition, and this is a dupe of the bug to make onbeforeunload work in e10s. I would find it but on my phone right now. Gingerbread man, can you take care of this?

	Gingerbread Man
	Comment 3 • 9 years ago

(In reply to Gijs Kruitbosch (PTO until Sep 6) from comment #2)
> 99% sure this is because e10s is on on dev edition

Indeed, it does work with e10s disabled.

> and this is a dupe of the bug to make onbeforeunload work in e10s. I would find it
> but on my phone right now. Gingerbread man, can you take care of this?

Yes, I think I've got it: bug 967873.

	:Gijs (he/him)
	Comment 4 • 9 years ago

Thanks!